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amdgpu issues with randr?

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  • amdgpu issues with randr?

    Hi folks,

    are there known issues with amdgpu and randr extension?
    Whenever I use xrandr to disable my laptop´s screen when the external HDMI is connected, X gets killed and SDDM pops up.

    It´s this command I use: xrandr --output HDMI-A-0 --mode 1920x1080 --primary --output eDP --off

    RandR 1.2 is enabled according to Xorg.log

    Maybe due to immature Raven Ridge support in amdgpu (I use a mobile Rizen 5 APU) ?

  • #2
    Originally posted by Fernseher View Post
    Hi folks,

    are there known issues with amdgpu and randr extension?
    Whenever I use xrandr to disable my laptop´s screen when the external HDMI is connected, X gets killed and SDDM pops up.

    It´s this command I use: xrandr --output HDMI-A-0 --mode 1920x1080 --primary --output eDP --off

    RandR 1.2 is enabled according to Xorg.log

    Maybe due to immature Raven Ridge support in amdgpu (I use a mobile Rizen 5 APU) ?
    Can you try just one output at a time and see what happens?
    Code:
    xrandr --output HDMI-A-0 --mode 1920x1080 --primary
    xrandr --output eDP --off
    Also, what kernel version are you running? Anything below 4.16-rc* will give you random lockups and kernel panics.

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